165125902 has 16 divisors (see below), whose sum is σ = 259876224. Its totient is φ = 78588000.

The previous prime is 165125881. The next prime is 165125921. The reversal of 165125902 is 209521561.

It is a super-2 number, since 2×165125902² = 54533127022627208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18049 + ... + 25612.

It is an arithmetic number, because the mean of its divisors is an integer number (16242264).

Almost surely, 2^165125902 is an apocalyptic number.

165125902 is a deficient number, since it is larger than the sum of its proper divisors (94750322).

165125902 is a wasteful number, since it uses less digits than its factorization.

165125902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43755.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 165125902 is about 12850.1323728590. The cubic root of 165125902 is about 548.6201244452.

The spelling of 165125902 in words is "one hundred sixty-five million, one hundred twenty-five thousand, nine hundred two".